65306680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{883}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 150607080

約数和(自身を除く): 85300400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 883, 1720, 1766, 1849, 3532, 3698, 4415, 7064, 7396, 8830, 9245, 14792, 17660, 18490, 35320, 36980, 37969, 73960, 75938, 151876, 189845, 303752, 379690, 759380, 1518760, 1632667, 3265334, 6530668, 8163335, 13061336, 16326670, 32653340, 65306680]

約数ペア:

[(1, 65306680), (2, 32653340), (4, 16326670), (5, 13061336), (8, 8163335), (10, 6530668), (20, 3265334), (40, 1632667), (43, 1518760), (86, 759380), (172, 379690), (215, 303752), (344, 189845), (430, 151876), (860, 75938), (883, 73960), (1720, 37969), (1766, 36980), (1849, 35320), (3532, 18490), (3698, 17660), (4415, 14792), (7064, 9245), (7396, 8830)]